Precision Flavour Physics with $B\to K\nu\bar\nu$ and $B\to Kl^+l^-$ (2009)
Bartsch, M., Beylich, M., Buchalla, G.
We show that a combined analysis of $B\to K\nu\bar\nu$ and $B\to Kl^+l^-$ allows for new physics tests practically free of form factor uncertainties. Residual theory errors are at the level of...
Penguins with Charm and Quark-Hadron Duality (2009)
Beneke, M, Buchalla, G, Neubert, M, Sachrajda, C T
The integrated branching fraction of the process $B\to X_s l^+l^-$ is dominated by resonance background from narrow charmonium states, such as $B\to X_s\psi\to X_s l^+l^-$, which exceeds the...
Penguins with Charm and Quark-Hadron Duality (2009)
Beneke, M., Buchalla, G., Neubert, M., Sachrajda, C. T.
The integrated branching fraction of the process $B\to X_s l^+l^-$ is dominated by resonance background from narrow charmonium states, such as $B\to X_s\psi\to X_s l^+l^-$, which exceeds the...
Buchalla, G., Komatsubara, T. K., Muheim, F., Silvestrini, L., Artuso, M., Asner, D. M., ...
The present report documents the results of Working Group 2: B, D and K decays, of the workshop on Flavor in the Era of the LHC, held at CERN from November 2005 through March 2007. With the advent of...
B Physics Theory for Hadron Colliders (2008)
A short overview of theoretical methods for B physics at hadron colliders is presented. The main emphasis is on the theory of two-body hadronic B decays, which provide a rich field of investigation...
Buchalla, G., Komatsubara, T. K., Muheim, F., Silvestrini, L., Artuso, M., Asner, D. M., ...
With the advent of the LHC, we will be able to probe New Physics (NP) up to energy scales almost one order of magnitude larger than it has been possible with present accelerator facilities. While...
Beneke, M., Buchalla, G., Neubert, M., Sachrajda, C.T.
We show that the factorization formula for nonleptonic B decays to two light flavor-nonsinglet mesons derived by Bauer et al. in the context of soft-collinear effective theory is equivalent to the...
Comment on ``B->M_1 M_2: Factorization, charming penguins, strong phases, and polarization'' (2004)
Beneke, M., Buchalla, G., Neubert, M., Sachrajda, C. T.
We show that the factorization formula for non-leptonic B decays to two light flavor non-singlet mesons derived by Bauer et al. in the context of soft-collinear effective theory is equivalent to the...
ECFA/CERN studies of a European Neutrino Factory Complex (2004)
Blondel, A, Buchalla, G, Campanelli, M, Ellis, JR, Giudice, GF, Gruber, P, ...
The CKM Matrix and the unitary triangle (2003)
Battaglia, M., Buras, A.J., Gambino, P., Stocchi, A., Abbaneo, D., Ali, A., ...
This report contains the results of the Workshop on the CKM Unitarity Triangle, held at CERN on 13-16 February 2002 to study the determination of the CKM matrix from the available data of K, D, and B...
CP asymmetry in flavour-specific B decays beyond leading logarithms (2003)
Beneke, M., Buchalla, G., Lenz, A., Nierste, U.
We compute next-to-leading order QCD corrections to the CP asymmetry a_{fs} = Im(Gamma_{12}/M_{12}) in flavour-specific B_{d,s} decays such as B_d->X l nu or B_s->D^-_s pi^+. The corrections reduce...
The CKM Matrix and the Unitarity Triangle (2003)
Battaglia, M., Buras, A. J., Gambino, P., Stocchi, A., Abbaneo, D., Ali, A., ...
This report contains the results of the Workshop on the CKM Unitarity Triangle, held at CERN on 13-16 February 2002 to study the determination of the CKM matrix from the available data of K, D, and B...
The B^+ B_d^0 Lifetime Difference Beyond Leading Logarithms (2002)
Beneke, M., Buchalla, G., Greub, C., Lenz, A., Nierste, U.
We compute perturbative QCD corrections to the lifetime splitting between the charged and neutral $B$ meson in the framework of the heavy quark expansion. These next-to-leading logarithmic...
Kaon physics with a high-intensity proton driver (2001)
Belyaev, A., Buchalla, G., Ceccucci, A., Chizhov, M., D'Ambrosio, G., Dorokhov, A., ...
We study opportunities for future high-precision experiments in kaon physics using a high-intensity proton driver, which could be part of the front-end of a muon storage ring complex. We discuss in...
QCD Factorization in B -> pi K, pi pi Decays and Extraction of Wolfenstein Parameters (2001)
Beneke, M., Buchalla, G., Neubert, M., Sachrajda, C. T.
In the heavy-quark limit, the hadronic matrix elements entering nonleptonic $B$-meson decays into two light mesons can be calculated from first principles including ``nonfactorizable''...
QCD factorization for $B\to\pi K$ decays (2000)
Beneke, M., Buchalla, G., Neubert, M., Sachrajda, C. T.
We examine some consequences of the QCD factorization approach to non-leptonic B decays into $\pi K$ and $\pi \pi$ final states, including a set of enhanced power corrections. Among the robust...
Beneke, M., Buchalla, G., Neubert, M., Sachrajda, C. T.
We provide a rigorous basis for factorization for a large class of non-leptonic two-body $B$-meson decays in the heavy-quark limit. The factorization formula incorporates elements of the naive...
Phenomenology of non-standard Z couplings in exclusive semileptonic b -> s transitions (2000)
Buchalla, G., Hiller, G., Isidori, G.
The rare decays $B\to K^{(*)}\ell^+\ell^-$, $B\to K^{(*)}\nu\bar\nu$ and $B_s\to\mu^+\mu^-$ are analyzed in a generic scenario where New Physics effects enter predominantly via $Z$ penguin...
Ball, P., Fleischer, R., Tartarelli, G. F., Vikas, P., Wilkinson, G., Baines, J., ...
We review the prospects for B decay studies at the LHC.
Beneke, M., Buchalla, G., Neubert, M., Sachrajda, C. T.
We show that, in the heavy quark limit, the hadronic matrix elements that enter $B$ meson decays into two light mesons can be computed from first principles, including `non-factorizable' strong...
Next-to-Leading Order QCD Corrections to the Lifetime Difference of $B_s$ Mesons (1998)
Beneke, M., Buchalla, G., Greub, C., Lenz, A., Nierste, U.
We compute the QCD corrections to the decay rate difference in the $B_s-\bar B_s$ system, $\Delta\Gamma_{B_s}$, in the next-to-leading logarithmic approximation using the heavy quark expansion...
CP Violation in Neutral Kaon Decays (1997)
A brief review of the theoretical status of CP violation in decays of neutral kaons is presented. We focus on three important topics: $\varepsilon$, $\varepsilon'/\varepsilon$ and...
Corrections of Order $\Lambda^2_{QCD}/m^2_c$ to Inclusive Rare B Decays (1997)
We calculate nonperturbative ${\cal O}(\Lambda^2_{QCD}/m^2_c)$ corrections to the dilepton invariant mass spectrum and the forward-backward charge asymmetry in $B\to X_se^+e^-$ decay using a heavy...
Width Difference in the $B_s-\bar{B_s}$ System (1996)
Beneke, M., Buchalla, G., Dunietz, I.
We use the heavy quark expansion to investigate the width difference $\Delta\Gamma_{B_s}$ between the $B_s$ mass eigenstates. The corrections of ${\cal O}(\Lambda_{QCD}/m_b)$ and ${\cal O}(m_s/m_b)$...
The $B_c$ Meson Lifetime (1996)
We investigate the total inclusive decay rate of the (ground state) $B_c$ meson within the framework of an operator product expansion in inverse powers of the heavy quark masses and subsequent...
GIM Violation and New Dynamics of the Third Generation (1995)
Buchalla, G., Burdman, G., Hill, C. T., Kominis, D.
In strong dynamical schemes for electroweak symmetry breaking the third generation must be treated in a special manner, owing to the heavy top quark. This potentially leads to new flavor physics...
We generalize the existing analyses of the parity violating muon polarization asymmetry $\Delta_{LR}$ in $K^+\to\pi^+\mu^+\mu^-$ beyond the leading logarithmic approximation. The inclusion of...
The Rare Decays $K^+\to\pi^+\nu\bar\nu$\ and $K_L\to\mu^+\mu^-$\ Beyond Leading Logarithms (1993)
We analyze the branching ratio for the FCNC mode $K^+\to\pi^+\nu\bar\nu$\ in the standard model with QCD effects taken into account consistently to next-to-leading order. This involves a two-loop...
THE CKM MATRIX AND THE UNITARITY TRIANGLE
Abbaneo, D., Ali, A., Amaral, P., Andreev, V., Artuso, M., Barberio, E., ...
This report contains the results of the Workshop on the CKM Unitarity Triangle, held at CERN on 13-16 February 2002 to study the determination of the CKM matrix from the available data of K, D, and B...